In 1980 a case of myxedema was treated in Lisbon by the implantation of a sheep thyroid gland with the immediate improvement in the patient s condition. A few years later, medications for the then ill-explained condition of the menopause included tablets made from cow ovaries. In the first quarter of the 20^th century the identification vitamin D₃ and its sunlight driven production in skin paved the way to the elimination of rickets as a major medical problem. Twenty years or so later Sir Vincent Wigglesworth established the endocrine basis of developmental moulting in...

In 1980 a case of myxedema was treated in Lisbon by the implantation of a sheep thyroid gland with the immediate improvement in the patient s condition. A few years later, medications for the then ill-explained condition of the menopause included tablets made from cow ovaries. In the first quarter of the 20^th century the identification vitamin D₃ and its sunlight driven production in skin paved the way to the elimination of rickets as a major medical problem. Twenty years or so later Sir Vincent Wigglesworth established the endocrine basis of developmental moulting in...